.on-line{
    height: 100%;
    width: 25%;
    float: right;
    padding: 8px;
}

.user-list-item{
    transition: 0.8s;
    height: 100%;
    margin: 5px;
    border-radius: 5px;
    padding: 5px;
}

.user-list-item:hover{
    transition: 0.8s;
    background-color: #ccc;
    /* // 鼠标悬浮时的样式手指 */
    cursor: pointer;
}

.ant-badge-dot{
    background-color: #52c41a !important;
}